One Piece Encyclopedia

Water 7 Saga

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The "Water 7 Saga" (ウォーターセブン編 Wōtā Sebun Hen?) (Also known as the "World Government Saga" or "CP9 Saga") is the fourth saga in One Piece. After the adventure in Skypiea, the crew lands safely back in the Blue Sea, only to find themselves confronting Foxy the Silver Fox in the Davy Back Fight, and soon after, Aokiji, one of the three Marine Admirals. Narrowly escaping Aokiji, the Straw Hat Pirates reach Water 7, a city of carpenters, where Luffy is on a quest to find a shipwright for the crew.

They soon fall into trouble though, making enemies with both the Franky Family: a ship dismantling group, and the Galley-La Company: a shipbuilding company which employs some of the top carpenters in the world. They also learn that the Going Merry is dying, and because of this, Luffy decides to get a new ship. Usopp disagrees with the decision and leaves the crew. Meanwhile, CP9 of the World Government captures Robin by her will and flees to Enies Lobby, while the crew attempts to get Robin back. Finally, they get her free and get a new crewmate: Franky, who is their shipwright. As they are leaving, Usopp apologizes and is welcomed back into the crew, and so the Straw Hat Pirates are ready to set sail with a brand new ship and shipwright, Thousand Sunny and Franky, along with Robin and Usopp back in the crew.

Story ArcsEdit

Filler ArcsEdit


  • This is the second longest saga in the manga, consisting of 139 chapters in 15 volumes. The largest is the Dressrosa Saga, with over 140 chapters.
  • This is the only saga in the first half of One Piece to not introduce a new Shichibukai.
  • It is during this saga that the Straw Hats' need for a shipwright, as well as a new ship to replace the Going Merry, becomes clear. This saga is the last saga to feature the Going Merry and was the first saga to feature the Merry's successor, the Thousand Sunny.
  • This saga involves several members of the Straw Hats leaving the crew temporarily. During the Long Ring Long Land Arc, Chopper is forced to leave the crew during the Davy Back Fight between the Straw Hats and the Foxy Pirates (in the anime, Robin is forced to leave during the Davy Back Fight as well), though the Straw Hats later win him (and Robin in the anime) back. During the Water 7 Arc, Usopp leaves the crew following his and Luffy's fight over the Going Merry, while Robin is forced to leave due to the threat CP9 and the Buster Call pose to the Straw Hats. Robin later rejoins the crew during the Enies Lobby Arc, while Usopp officially rejoins (as he used his Sogeking alter ego during the later part of the Water 7 Arc and the whole of the Enies Lobby Arc) during the Post-Enies Lobby Arc.
  • The Marine Admirals were first introduced in this saga, though only Aokiji and Akainu (during Robin's flashback of the Ohara Incident) actually appear. Kizaru is only mentioned briefly by Robin (he would later appear during the Sabaody Archipelago Arc in the Summit War Saga).
  • Robin and Franky's back histories are revealed during this saga and their potential to revive the Ancient Weapons, Pluton is explained.

Site NavigationEdit

[v · e · ?]
Plot of One Piece
Sea of Survival: Super Rookies Saga
East Blue: Romance Dawn  •  Orange Town  •  Syrup Village  •  Baratie  •  Arlong Park  •  Loguetown
Mini-Arcs: Buggy's Crew: After the Battle!  •  Diary of Coby-Meppo
Alabasta: Reverse Mountain  •  Whiskey Peak  •  Little Garden  •  Drum  •  Alabasta
Mini-Arcs: Jango's Dance Paradise  •  Hatchan's Sea-Floor Stroll
Sky Island: Jaya  •  Skypiea
Mini-Arcs: Wapol's Omnivorous Hurrah  •  Ace's Great Blackbeard Search
Water 7: Long Ring Long Land  •  Water 7  •  Enies Lobby  •  Post-Enies Lobby
Mini-Arcs: Gedatsu's Accidental Blue-Sea Life  •  Miss Goldenweek's "Operation: Meet Baroque Works"
Where They Are Now
  •  Enel's Great Space Operations
Thriller Bark: Thriller Bark
Mini-Arcs: Where They Are Now
Summit War: Sabaody Archipelago  •  Amazon Lily  •  Impel Down  •  Marineford  •  Post-War
Mini-Arcs: CP9's Independent Report  •  Straw Hat's Separation Serial
Other Canon: Monsters  •  Chapter 0
The Final Sea: The New World Saga
Fishman Island: Return to Sabaody  •  Fishman Island
Mini-Arcs: From the Decks of the World
Dressrosa: Punk Hazard  •  Dressrosa
Mini-Arcs: Caribou's Kehihihihi in the New World  •  Solo Journey of Jinbe, Knight of the Sea
Yonko: Zou  •  Totto Land
Mini-Arcs: From the Decks of the World: The 500,000,000 Man Arc
Filler Arcs: Warship Island  •  Post-Alabasta  •  Goat Island  •  Ruluka  •  G-8  •  Ocean's Dream  •  Foxy's Return  •  Ice Hunter  •  Spa Island  •  Little East Blue  •  Z's Ambition  •  Caesar Retrieval  •  Silver Mine
Movies: One Piece: The Movie  •  Clockwork Island Adventure  •  Chopper's Kingdom on the Island of Strange Animals  •  Dead End Adventure  •  The Cursed Holy Sword  •  Baron Omatsuri and the Secret Island  •  The Giant Mechanical Soldier of Karakuri Castle  •  Episode of Alabasta: The Desert Princess and the Pirates  •  Episode of Chopper Plus: Bloom in Winter, Miracle Sakura  •  One Piece Film: Strong World  •  One Piece 3D: Straw Hat Chase  •  One Piece Film: Z  •  One Piece Film: Gold
Featurettes and Specials: Adventure in the Ocean's Navel  •  Jango's Dance Carnival  •  Dream Soccer King  •  Take Aim! The Pirate Baseball King  •  Open Upon the Great Sea! A Father's Huge, HUGE Dream!  •  Protect! The Last Great Performance  •  The Detective Memoirs of Chief Straw Hat Luffy  •  Mugiwara Theater  •  Episode of Nami  •  Episode of Luffy  •  Episode of Merry  •  3D2Y  •  Episode of Sabo  •  Adventure of Nebulandia  •  Heart of Gold
OVAs: Defeat Him! The Pirate Ganzack  •  Romance Dawn Story  •  One Piece Film Strong World: Episode 0  •  One Piece Film: Gold Episode 0
Other Related Stories
Omake: Report Time  •  Obahan Time  •  Jingi-nai Time  •  Chopper Man  •  Monster Time  •  Space Time  •  Red-Hair of Class 3 - Sea Time  •  Marchen Time  •  Family Time  •  Ed Sullivan Show  •  Detective Loomes  •  Circus Time  •  RPG Time  •  4-Panel Strips  •  Orchestra of the Sea
Crossovers: Cross Epoch  •  One Piece x Toriko Crossover
One Shots: Romance Dawn  •  God's Gift for the Future  •  Ikki Yako  •  Monsters  •  Wanted!

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